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Finding the Fourth Proportional to 247,137.05, 370,734.38 and 89,439.77

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Solution

The fourth proportional to 247,137.05, 370,734.38 and 89,439.77 is: 134,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,137.05 : 370,734.38 = 89,439.77 : x
  2. Step 2: Convert to fraction form
    247,137.05/370,734.38 = 89,439.77/x
  3. Step 3: Cross multiply
    247,137.05x = 370,734.38 × 89,439.77
  4. Step 4: Simplify right side
    247,137.05x = 33,158,398,493.33
  5. Step 5: Solve for x
    x = 33,158,398,493.33/247,137.05
  6. Step 6: Final answer
    x = 134,170.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.